org.jetbrains.kotlin.psi.JetFunctionType Maven / Gradle / Ivy
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.kotlin.psi;
import com.google.common.collect.Lists;
import com.intellij.lang.ASTNode;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.lexer.JetToken;
import org.jetbrains.kotlin.lexer.JetTokens;
import org.jetbrains.kotlin.psi.stubs.KotlinPlaceHolderStub;
import org.jetbrains.kotlin.psi.stubs.elements.JetStubElementTypes;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class JetFunctionType extends JetElementImplStub> implements JetTypeElement {
public static final JetToken RETURN_TYPE_SEPARATOR = JetTokens.ARROW;
public JetFunctionType(@NotNull ASTNode node) {
super(node);
}
public JetFunctionType(@NotNull KotlinPlaceHolderStub stub) {
super(stub, JetStubElementTypes.FUNCTION_TYPE);
}
@NotNull
@Override
public List getTypeArgumentsAsTypes() {
ArrayList result = Lists.newArrayList();
JetTypeReference receiverTypeRef = getReceiverTypeReference();
if (receiverTypeRef != null) {
result.add(receiverTypeRef);
}
for (JetParameter jetParameter : getParameters()) {
result.add(jetParameter.getTypeReference());
}
JetTypeReference returnTypeRef = getReturnTypeReference();
if (returnTypeRef != null) {
result.add(returnTypeRef);
}
return result;
}
@Override
public R accept(@NotNull JetVisitor visitor, D data) {
return visitor.visitFunctionType(this, data);
}
@Nullable
public JetParameterList getParameterList() {
return getStubOrPsiChild(JetStubElementTypes.VALUE_PARAMETER_LIST);
}
@NotNull
public List getParameters() {
JetParameterList list = getParameterList();
return list != null ? list.getParameters() : Collections.emptyList();
}
@Nullable
public JetTypeReference getReceiverTypeReference() {
JetFunctionTypeReceiver receiverDeclaration = getStubOrPsiChild(JetStubElementTypes.FUNCTION_TYPE_RECEIVER);
if (receiverDeclaration == null) {
return null;
}
return receiverDeclaration.getTypeReference();
}
@Nullable
public JetTypeReference getReturnTypeReference() {
return getStubOrPsiChild(JetStubElementTypes.TYPE_REFERENCE);
}
}